Alpha Win Lake George Triathlon
Lake George, New YorkOpen water swim
from $69
RegisterRace calendar
Triathlons in September 2027
59 triathlons, duathlons and aquabikes across 24 states in September 2027: 48 sprint, 22 olympic, 7 half iron, 15 kids, 32 duathlon. 45 swim in open water and 9 in a pool. Dates and fees come from race registration and refresh every night.
59
races in September
24
states
9
with a pool swim
$66
typical entry fee
Other months
September triathlons by state
Saturday, September 4
Sunday, September 5
New Orleans Triathlon
New Orleans, Louisiana7:00 AM startPool swim
from $25
RegisterZarzaur Law Sea Turtle Triathlon
Pensacola Beach, Florida8:00 AM startOpen water swim
Kids TriathlonWater about 85°F
from $32
RegisterMonday, September 6
Blackland Triathlon and Blackland Youth Tri
Plano, TexasPool swim
from $30
Register
from $30
RegisterFriday, September 10
CDA Ultra 73.2 (Trail of the Coeur D’Alenes)
Coeur D Alene, Idaho6:00 AM startTrail
from Free
RegisterSaturday, September 11
Hyannis 2 Triathlon
Centerville, Massachusetts7:00 AM startOpen water swim
from $120
RegisterLakeside Double Sprint Triathlon
Greenville, South Carolina7:00 AM startPool swim
Sprint TriathlonRolling bike
from $80
RegisterPatriots Triathlon
Williamsburg, Virginia7:00 AM startOpen water swim
from $114
RegisterShe Tris Sprint Triathlon - Carnes Crossroads
Summerville, South Carolina7:00 AM startPool swim
from $40
RegisterToughman 2027
Stony Point, New York7:00 AM startOpen water swim
from $100
Registerfrom $105
RegisterWhite Lake Fall International & Sprint Triathlon
White Lake, North Carolina7:30 AM startOpen water swim
from $85
RegisterFontana Triathlon on Geneva Lake
Fontana, Wisconsin6:45 AM startOpen water swim
from $94
RegisterBrett Robinson Alabama Coastal Triathlon
Gulf Shores, Alabama7:00 AM startOpen water swim
from $79
RegisterDQ Pine Barrens Olympic Triathlon, Duathlon, & Aquabike; Sprint Triathlon & Aquathlon *#
Shamong, New Jersey8:00 AM startOpen water swim
from $105
RegisterTri the Parks - John Tanner Fall Sprint
Carrollton, Georgia8:00 AM startOpen water swim
from $99
Register
from Free
RegisterWolfman Triathlon and Trail Run
White Lake, Wisconsin8:00 AM startTrailOpen water swim
Sprint TriathlonOther
from $30
RegisterFinger Lakes Triathlon Canandaigua
Canandaigua, New York10:00 AM startOpen water swim
from $30
Register2027 Lake Nighthorse Triathlon - Sprint and Olympic
Durango, Colorado8:30 AM startOpen water swim
from $85
Register
from $75
RegisterSunday, September 12
Saugerties, NY Triathlon
Saugerties, New York
from $63
Register9th Annual Rockaway Beach Triathlon/Duathlon
Rockaway Beach, New York5:00 AM startOpen water swim
from Free
RegisterMighty Hamptons Steve Tarpinian Memorial Olympic Distance Triathlon presented by Northwell Health benefitting i-tri
Sag Harbor, New York6:50 AM startOpen water swim
from $80
RegisterAdventHealth Cool Sommer Mornings Triathlon\Duathlon\5K Series #4
Clermont, Florida7:10 AM startOpen water swim
from $44
Register370 Lakeside Triathlon
Saint Peters, Missouri6:45 AM startOpen water swim
from $30
Register
from $23.86
RegisterCajunMan Triathlon, Duathlon, Aquabike, Aquathlon & 5k Run
Lafayette, Louisiana7:00 AM startOpen water swim
from $30
RegisterKewaskum TRiE-athlon: Sprint Triathlon Presented by Kewaskum Friends of Parks and TRiE Fitness
Kewaskum, Wisconsin7:00 AM startOpen water swim
from $20
RegisterWALSH Triathlon
Fort Worth, Texas7:00 AM startOpen water swim
from $39
RegisterDeGray Lake Triathlon
Caddo Valley, Arkansas7:30 AM startOpen water swim
from $45
RegisterShaver Lake Mile High Triathlon
Shaver Lake, California8:30 AM startOpen water swim
from $70
RegisterSaturday, September 18
from $69
RegisterYMCA Wrightsville Beach Sprint Triathlon
Wrightsville Beach, North Carolina6:50 AM startOpen water swim
from $120
RegisterTarpon Springs Sprint Triathlon/Duathlon/Aquabike/5K
Tarpon Springs, Florida7:00 AM startOpen water swim
from $25
RegisterTexas City Triathlon, Duathlon, & Aquabike
Texas City, Texas7:25 AM startOpen water swim
from Free
RegisterWinchester Lakeside Triathlons
Winchester, Tennessee7:30 AM startOpen water swim
from $79
RegisterBear Lake Brawl Triathlon
St Charles, Idaho7:00 AM startOpen water swim
from $35
RegisterFrantic Frog Fall Sprint Triathlon and 5k
Scottsboro, Alabama8:00 AM startOpen water swim
from $30
RegisterThe page shows the next September to come. Races appear as their organizers open registration, so later months fill in through the winter.